Intel
IntelBX80684I78700K
  

2 Cores, 4 Threads @1.6 GHz, Broadwell.
Release date ≈ Q1 2015.

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 313,251 user samples
2,095 User Benchmarks
Best Bench: 44% Base clock 1.6 GHz, turbo 2.5 GHz (avg)
Worst Bench: 18% Base clock 1.6 GHz, turbo 0.5 GHz (avg)
Poor: 18% Great: 44%
SPEED RANK: 560th / 1176
Gaming
Gaming 36%
Jet ski
Desktop
Desktop 39%
Jet ski
Workstation
Workstation 17%
Surfboard
311,156 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.3 GHz (avg)
Worst Bench: 81% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 81% Great: 107%
SPEED RANK: 10th / 1176
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 76%
Battleship
Effective Speed
Effective CPU Speed
36.4 % 93.2 % Hugely faster effective speed.
+156%
SC Mixed
Avg. Single Core Mixed Speed
67.5 Pts 138 Pts Hugely faster single-core speed.
+104%
QC Mixed
Avg. Quad Core Mixed Speed
171 Pts 525 Pts Hugely faster quad-core speed.
+207%
MC Mixed
Avg. Multi Core Mixed Speed
176 Pts 1071 Pts Hugely faster multi-core speed.
+509%
SC Mixed
OC Single Core Mixed Speed
83.2 Pts 155 Pts Hugely faster OC single-core speed.
+86%
QC Mixed
OC Quad Core Mixed Speed
201 Pts 614 Pts Hugely faster OC quad-core speed.
+205%
MC Mixed
OC Multi Core Mixed Speed
201 Pts 1238 Pts Hugely faster OC multi-core speed.
+516%
Market Share
Based on 18,663,661 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 2.25 % Insanely higher market share.
+22,400%
User Rating
UBM User Rating
50 % 116 % Hugely more popular.
+132%
Age
Newest
52+ Months 21 Months Much more recent.
+60%
SC Int
Single Core Integer Speed
79.2 Pts 150 Pts Hugely faster single-core int speed.
+89%
SC Float
Single Core Floating Point Speed
87.5 Pts 159 Pts Hugely faster single-core fp speed.
+82%
QC Int
Quad Core Integer Speed
185 Pts 599 Pts Hugely faster quad-core int speed.
+224%
QC Float
Quad Core Floating Point Speed
216 Pts 636 Pts Hugely faster quad-core fp speed.
+194%
MC Int
Multi Core Integer Speed
186 Pts 1119 Pts Hugely faster multi-core int speed.
+502%
MC Float
Multi Core Floating Point Speed
216 Pts 1319 Pts Hugely faster multi-core fp speed.
+511%
Launch Date
Launch Date
Q1'15 Q4'17
Cache
Cache
3 MB 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$315.00 N/A
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
16 GB 64 GB
Memory Types
Memory Types
DDR3L 1333/1600, LPDDR3 1600/1866 DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 6000 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
300 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
950 MHz 1.20 GHz
Graphics Video Max Memory
Graphics Video Max Memory
16 GB 64 GB
Package Size
Package Size
40mm x24mm x 1.3mm 37.5mm x 37.5mm
TSX-NI
Intel® TSX-NI
No Yes
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
4x1, 2x4 Up to 1x16 or 2x8 or 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
12 16

More specs » More specs »
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The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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